Z53.39 – Other specified procedure converted to open procedure

ICD-10-CM 2027 diagnosis code · Encounters for other specific health care

Billable code

ICD-10-CM code Z53.39

Code: Z53.39 (claims format: Z5339)
Description: Other specified procedure converted to open procedure
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 21. Factors influencing health status and contact with health services (Z00-Z99)
Block: Z40-Z53 Encounters for other specific health care
Parent codes: Z53 › Z53.3

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block Z40-Z53

Applicable to:

Categories Z40-Z53 are intended for use to indicate a reason for care. They may be used for patients who have already been treated for a disease or injury, but who are receiving aftercare or prophylactic care, or care to consolidate the treatment, or to deal with a residual state

Excludes2 (not included here):

follow-up examination for medical surveillance after treatment (Z08-Z09)

Index terms for Z53.39

Entries in the ICD-10-CM alphabetic index that lead to this code:

Procedure, converted, specified procedure NEC to open

Related codes in Z53.3

Frequently asked questions

What is ICD-10 code Z53.39?

Z53.39 is the ICD-10-CM code for other specified procedure converted to open procedure, in the block Z40-Z53 (Encounters for other specific health care).

Is Z53.39 a billable code?

Yes. Z53.39 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does Z53.39 belong to?

It belongs to category Z53 – Persons encountering health services for specific procedures and treatment, not carried out.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.